EP3245651A1 - System und verfahren zur aktiven schallbeeinflussung - Google Patents
System und verfahren zur aktiven schallbeeinflussungInfo
- Publication number
- EP3245651A1 EP3245651A1 EP16790574.4A EP16790574A EP3245651A1 EP 3245651 A1 EP3245651 A1 EP 3245651A1 EP 16790574 A EP16790574 A EP 16790574A EP 3245651 A1 EP3245651 A1 EP 3245651A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- signal
- generator
- control signal
- generated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
- F01N1/065—Silencing apparatus characterised by method of silencing by using interference effect by using an active noise source, e.g. speakers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1244—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound
- F02M35/125—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound by using active elements, e.g. speakers
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17813—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
- G10K11/17817—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
- G10K11/17823—Reference signals, e.g. ambient acoustic environment
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
- G10K11/17825—Error signals
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
- G10K11/17837—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by retaining part of the ambient acoustic environment, e.g. speech or alarm signals that the user needs to hear
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17853—Methods, e.g. algorithms; Devices of the filter
- G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/112—Ducts
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
- G10K2210/12822—Exhaust pipes or mufflers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3014—Adaptive noise equalizers [ANE], i.e. where part of the unwanted sound is retained
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3023—Estimation of noise, e.g. on error signals
- G10K2210/30232—Transfer functions, e.g. impulse response
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3025—Determination of spectrum characteristics, e.g. FFT
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3026—Feedback
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3035—Models, e.g. of the acoustic system
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3044—Phase shift, e.g. complex envelope processing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3055—Transfer function of the acoustic system
Definitions
- Exhaust systems for internal combustion engines are conventionally constructed of passive components, which are flowed through in all operating situations in total of exhaust gas and together form the exhaust system.
- these components may be, for example, one or more turbochargers, one or more catalytic converters and / or one or more silencers.
- Intake systems for internal combustion engines are accordingly flowed through in all operating situations of air and usually have one or more filters, valves and compressors.
- This measurement by means of the error microphone 5 takes place in a section downstream of a region in which the sound line opens into the exhaust system 4 and thus the fluid connection between exhaust system 4 and sound generator 3 is provided.
- the term "downstream” is based on the flow direction of the exhaust gas in the tailpipe 1 of the exhaust system 4.
- the flow direction of the exhaust gas is indicated by arrows in FIG.
- further components of the exhaust system 4 such as a catalytic converter and a silencer, may be provided (not shown).
- the speaker 2 and the error microphone 5 are each connected to a controller 9.
- the controller 9 is connected via a CAN bus with an engine control 6 'of an internal combustion engine 6.
- the internal combustion engine 6 further has an intake system 6 ", which calculates the sound measured by the error microphone 5 and operating parameters of the internal combustion engine 6 received via the CAN bus Control 9 for the speaker 2, a signal which generates a desired total noise when superimposed with the guided inside the tailpipe 1 of the exhaust system 4 sound, and outputs this to the speaker 2.
- the controller may use a Filtered-x Least Mean Squares (FxLMS) algorithm and attempt to return a feedback signal / error signal measured by the error microphone by outputting sound through the loudspeaker to zero (in the case of sound cancellation) or a predetermined threshold (in Case of sound interference).
- FxLMS Filtered-x Least Mean Squares
- s (n) is the impulse response of the second transfer function and are each the Z transforms of the signals
- Figure 4B shows the model of Figure 4A in greater detail.
- the signal y (n) output by the ANC core is composed of two sinusoidal oscillations provided by a sine-wave generator relative to each other by 90 °, which are previously converted by means of two amplifiers
- the system may further comprise a microphone which measures the sound to be manipulated and outputs a measurement signal corresponding thereto, wherein the signal generator is further configured to generate the sound signal taking into account the measurement signal which is output by the microphone.
- the system may further include a user interface configured to receive a user input, wherein the signal generator is further configured to generate the sound signal in consideration of the user input received via the user interface.
- the signal generator may then be connectable to a motor controller of an engine and configured to generate the sound signal in consideration of signals received from the engine controller.
- the signal generator is configured to generate the sound signal using a Filtered-x Least Mean Square (FxLMS) algorithm.
- FxLMS Filtered-x Least Mean Square
- the signal generator is configured to separately generate the sound signal for each order of the sound to be manipulated (for each engine order, if the source of the sound to be manipulated is an internal combustion engine).
- Figure 1 is a perspective view of a system for actively influencing in the
- Figure 7 schematically shows a combustion engine powered vehicle with the
- basic control signals ⁇ ( ⁇ ) are determined in the controller 92 for a respective speed and torque of the motor vehicle.
- the basic control signals ⁇ ( ⁇ ) are each rational numbers greater than or equal to zero.
- the controller 92 determines a train of fundamental control signals ⁇ ( ⁇ ) representing a series of rational numbers greater than or equal to zero.
- the earlier time points (n-1) of the signal u (n-1) generated by the sound generator compared to the present are in each case ten times an internal clock frequency of the signal generator.
- the invention is not limited thereto; however, the earlier times should be as close as possible to the present in order to minimize a mistake.
- the second control signal ⁇ 2 ( ⁇ ) is then determined by the controller 92 as a product of the basic control signal ⁇ ( ⁇ ) with a generated by the sound generator 20 at an earlier time for the purpose of superposition signal u.
- the ANC core 91 outputs the sound signal y (n) and the controller 92 of the ANC extension 96 outputs the first control signal to the weighter 95.
- the second control signal is supplied by the adder 94 from the feedback signal e '(n),
- the algorithm implemented in the ANC core 91 and the ANC extension is based on the following considerations (which occurs separately for each engine order of the internal combustion engine 60):
- the sound to be emitted by the loudspeaker for cancellation / superposition must also correspond to a harmonic signal u (n) with temporally changed phase and amplitude:
- ü (n) estimates the signal representing the output from the sound generator 20 sound. If the convolution operator conv [.] Is applied to a harmonic signal, this can simply be represented by the phase delay TFPHASE and the attenuation TFAMP at the given fundamental frequency fo:
- SQRT is the square root. This can be stored as a map in the controller 92, so that this method can be very efficient in terms of computing power.
- ü (n) can be considered as a linear function of the phasor vector w (n). If the phasor vector w (n) is parallel to the x-axis or the y-axis, the magnitude of the amplitude is simply part of one or the other
- step S23 the first and second control signals
- FIG. 12B the exhaust system was mechanically damped compared to FIG. 12A and thus made a total of about 4 dB quieter. Obviously, this mechanical damping does not change the fact that the system according to the invention effects a largely constant sound pressure level of about 33 dB. At the same time, more energy is needed for the actuator as the sound pressure level has to be raised compared to the shutdown system. This effect does not occur in conventional systems.
- FIG. 12C the exhaust system has been made mechanically louder by about 4 dB compared to FIG. 12A. Clearly, this does not change the fact that the system according to the invention causes a largely constant sound pressure level of about 33 dB.
- a proof of the invention in internal combustion engine powered vehicles can be carried out with the following method:
- the mechanical manipulation of the exhaust system should not lead to the instability of the system for influencing sound.
- the sound pressure level measured by the error microphone with the system mechanically switched on should correspond to the sound pressure level measured with the error microphone when the system is switched on in the mechanically non-manipulated system (for the stationary operating points).
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- General Engineering & Computer Science (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016106325 | 2016-04-06 | ||
| DE102016106326 | 2016-04-06 | ||
| PCT/EP2016/076249 WO2017174166A1 (de) | 2016-04-06 | 2016-10-31 | System und verfahren zur aktiven schallbeeinflussung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3245651A1 true EP3245651A1 (de) | 2017-11-22 |
| EP3245651B1 EP3245651B1 (de) | 2018-10-03 |
Family
ID=57226964
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16790574.4A Active EP3245651B1 (de) | 2016-04-06 | 2016-10-31 | System und verfahren zur aktiven schallbeeinflussung |
| EP16790573.6A Active EP3245650B1 (de) | 2016-04-06 | 2016-10-31 | System und verfahren zur aktiven schallbeeinflussung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16790573.6A Active EP3245650B1 (de) | 2016-04-06 | 2016-10-31 | System und verfahren zur aktiven schallbeeinflussung |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US10002603B2 (de) |
| EP (2) | EP3245651B1 (de) |
| JP (2) | JP6795613B2 (de) |
| CN (2) | CN107045869B (de) |
| DE (2) | DE102017103636A1 (de) |
| WO (2) | WO2017174165A1 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018128980A1 (en) * | 2017-01-03 | 2018-07-12 | Michigan Technological University | Solid-state transducer, system, and method |
| DE102017119406A1 (de) * | 2017-08-24 | 2019-02-28 | Samson Aktiengesellschaft | Kommunikationsverfahren für ein Stellgerät |
| US10074358B1 (en) * | 2017-09-07 | 2018-09-11 | GM Global Technology Operations LLC | Audio control systems and methods for vehicles with variable compression ratio engines |
| EP3688289A4 (de) * | 2017-09-25 | 2021-03-24 | Faurecia Emissions Control Technologies, USA, LLC | Akustisches volumen im heissen ende von abgasanlagen |
| EP3477630B1 (de) | 2017-10-26 | 2020-03-04 | Harman Becker Automotive Systems GmbH | Aktive rauschunterdrückung / motorordnungs-unterdrückung für eine kraftfahrzeug-abgasanlage |
| DE202017007444U1 (de) | 2017-11-03 | 2021-08-10 | Cisma Solutions Aps | Auspuffblende mit Schallquelle |
| DE102017219573B4 (de) | 2017-11-03 | 2021-11-11 | Cisma Solutions Aps | Auspuffblende mit Schallquelle |
| DE102017127454A1 (de) * | 2017-11-21 | 2019-05-23 | Faurecia Emissions Control Technologies, Germany Gmbh | Schallerzeugungsvorrichtung sowie Fahrzeugabgasanlage |
| DE102018107539A1 (de) * | 2018-03-29 | 2019-10-02 | Faurecia Emissions Control Technologies, Germany Gmbh | Schallerzeugungssystem, Kraftfahrzeug mit einem Schallerzeugungssystem sowie Schallsensoreinheit für ein Schallerzeugungssystem |
| EP3553772A1 (de) * | 2018-04-09 | 2019-10-16 | Harman International Industries, Incorporated | Verfahren und vorrichtung zum steuern von fahrzeuggeräuschen in einem fahrzeug |
| US20210229530A1 (en) * | 2018-06-05 | 2021-07-29 | Carrier Corporation | Transport refrigeration unit exhaust system management for low noise emissions |
| US10679603B2 (en) * | 2018-07-11 | 2020-06-09 | Cnh Industrial America Llc | Active noise cancellation in work vehicles |
| US11386882B2 (en) * | 2020-02-12 | 2022-07-12 | Bose Corporation | Computational architecture for active noise reduction device |
| TWI754555B (zh) * | 2021-02-26 | 2022-02-01 | 律芯科技股份有限公司 | 改良式雜訊分離混合型主動抗噪系統 |
| CN116110363B (zh) * | 2021-11-11 | 2026-01-30 | Oppo广东移动通信有限公司 | 降噪方法及相关产品 |
| CN120569777A (zh) * | 2023-02-08 | 2025-08-29 | 南洋理工大学 | 主动式噪声控制系统 |
| CN116364047B (zh) * | 2023-03-12 | 2026-03-13 | 北京驭声科技有限公司 | 一种基于Minimax准则下多误差ANC算法的窗户降噪系统及方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2940248B2 (ja) * | 1991-08-30 | 1999-08-25 | 日産自動車株式会社 | 能動型不快波制御装置 |
| FI94563C (fi) * | 1991-10-31 | 1995-09-25 | Nokia Deutschland Gmbh | Aktiivinen melunvaimennusjärjestelmä |
| JP4004710B2 (ja) * | 2000-03-31 | 2007-11-07 | ティーオーエー株式会社 | 能動型雑音除去装置 |
| US7279964B2 (en) * | 2003-07-30 | 2007-10-09 | Siemens Aktiengesellschaft | Drive circuit, device, and method for suppressing noise, and use |
| ATE402468T1 (de) * | 2004-03-17 | 2008-08-15 | Harman Becker Automotive Sys | Geräuschabstimmungsvorrichtung, verwendung derselben und geräuschabstimmungsverfahren |
| EP2395501B1 (de) * | 2010-06-14 | 2015-08-12 | Harman Becker Automotive Systems GmbH | Adaptive Geräuschsteuerung |
| DE102011106647A1 (de) * | 2011-07-05 | 2013-01-10 | J. Eberspächer GmbH & Co. KG | Antischall-system für abgasanlagen und verfahren zum steuern desselben |
| JP5681691B2 (ja) * | 2011-12-02 | 2015-03-11 | エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー | 排気音の能動的設計 |
| CN203150113U (zh) * | 2013-03-12 | 2013-08-21 | 徐华中 | 一种用于汽车的主动降噪装置 |
| EP2797075B1 (de) * | 2013-04-26 | 2018-09-12 | Eberspächer Exhaust Technology GmbH & Co. KG | System zur Beeinflussung von Abgasgeräuschen, Motorgeräuschen und/oder Ansauggeräuschen |
| DE102013010609B4 (de) * | 2013-06-25 | 2023-07-27 | Purem GmbH | System zur Beeinflussung von Abgasgeräuschen in einer mehrflutigen Abgasanlage und Kraftfahrzeug |
| DE102013109462A1 (de) * | 2013-08-30 | 2015-03-05 | Eberspächer Exhaust Technology GmbH & Co. KG | Abgasanlage mit einem system zur abfuhr von kondensat |
| DE102014101826B4 (de) * | 2014-02-13 | 2016-08-04 | Tenneco Gmbh | Schallgebersystem für ein Kraftfahrzeug |
-
2016
- 2016-10-31 JP JP2018552678A patent/JP6795613B2/ja active Active
- 2016-10-31 EP EP16790574.4A patent/EP3245651B1/de active Active
- 2016-10-31 EP EP16790573.6A patent/EP3245650B1/de active Active
- 2016-10-31 WO PCT/EP2016/076248 patent/WO2017174165A1/de not_active Ceased
- 2016-10-31 JP JP2018552821A patent/JP6666466B2/ja active Active
- 2016-10-31 WO PCT/EP2016/076249 patent/WO2017174166A1/de not_active Ceased
-
2017
- 2017-02-22 DE DE102017103636.9A patent/DE102017103636A1/de not_active Withdrawn
- 2017-02-22 DE DE102017103657.1A patent/DE102017103657A1/de not_active Withdrawn
- 2017-04-05 US US15/479,946 patent/US10002603B2/en active Active
- 2017-04-05 US US15/479,874 patent/US9978356B2/en active Active
- 2017-04-06 CN CN201710220896.8A patent/CN107045869B/zh active Active
- 2017-04-06 CN CN201710220598.9A patent/CN106870067B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3245650B1 (de) | 2018-08-15 |
| DE102017103636A1 (de) | 2017-10-12 |
| WO2017174165A1 (de) | 2017-10-12 |
| EP3245651B1 (de) | 2018-10-03 |
| CN107045869B (zh) | 2018-11-23 |
| CN106870067A (zh) | 2017-06-20 |
| EP3245650A1 (de) | 2017-11-22 |
| US10002603B2 (en) | 2018-06-19 |
| CN106870067B (zh) | 2019-08-27 |
| US20170294181A1 (en) | 2017-10-12 |
| JP2019514059A (ja) | 2019-05-30 |
| JP6666466B2 (ja) | 2020-03-13 |
| US20170294182A1 (en) | 2017-10-12 |
| WO2017174166A1 (de) | 2017-10-12 |
| JP2019516037A (ja) | 2019-06-13 |
| US9978356B2 (en) | 2018-05-22 |
| JP6795613B2 (ja) | 2020-12-02 |
| DE102017103657A1 (de) | 2017-10-12 |
| CN107045869A (zh) | 2017-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3245651B1 (de) | System und verfahren zur aktiven schallbeeinflussung | |
| DE69426630T2 (de) | System zur aktiven regelung für rauschformung | |
| DE102004026660B4 (de) | Aktives Geräuschsteuersystem | |
| DE69319783T2 (de) | Geräuschminderungssystem | |
| DE69521228T2 (de) | Schwingungs-/Lärmekontrolleanordnung | |
| DE4308923C2 (de) | Aktive Geräuschverringerungsvorrichtung | |
| DE102011117495B4 (de) | Überlastungsschutz für Lautsprecher in Abgasanlagen | |
| DE68916356T2 (de) | Lärmunterdrücker. | |
| DE102005043361B4 (de) | Vorrichtung zur aktiven Vibrationsgeräuschsteuerung/regelung | |
| DE69626902T2 (de) | Aktives adaptives selektives Steurungssystem | |
| DE102012023643A1 (de) | Aktive Gestaltung von Abgasgeräuschen | |
| EP0656737A1 (de) | Hörhilfegerät mit Unterdrückung der akustischen Rückkopplung | |
| DE102019123971B4 (de) | Aktives lärmkompensationssystem und verfahren | |
| WO2001029819A1 (de) | Verfahren und vorrichtung zur aktiven beeinflussung des ansauggeräusches einer brennkraftmaschine | |
| DE102011106647A1 (de) | Antischall-system für abgasanlagen und verfahren zum steuern desselben | |
| DE112012005713T5 (de) | Vorrichtung zur aktiven Vibrationsstörungssteuerung | |
| DE112006002343B4 (de) | Verfahren und Vorrichtung zur Regelung des Schalls eines Motors durch Schaltfrequenzanalyse | |
| DE112015006367T5 (de) | Aktive vibrationsgeräusch-steuervorrichtung | |
| EP1118043B1 (de) | Verfahren und schaltungsanordnung zur automatischen parametrierung eines schnellen digitalen drehzahlregelkreises | |
| DE69111402T2 (de) | Verfahren und Gerät zur Lärmdämpfung. | |
| EP1872360A1 (de) | Verfahren zur nachbildung eines secondary-path bei einem aktiven geräuschreduktionssystem | |
| DE4104168C1 (de) | ||
| EP3329335A1 (de) | Dämpfung von lastschwingungen ohne zusätzliche messmittel an der lastseite | |
| DE19910169B4 (de) | Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen | |
| EP1439437B1 (de) | Verfahren zur aktiven Dämpfung niederfrequenter Schwingungen an numerisch gesteuerten Werkzeugmaschinen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20170223 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20180207 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1049473 Country of ref document: AT Kind code of ref document: T Effective date: 20181015 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502016002170 Country of ref document: DE Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20181003 |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190103 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190103 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190203 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190104 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190203 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20181031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181031 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502016002170 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181031 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| 26N | No opposition filed |
Effective date: 20190704 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181031 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181003 Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181003 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20161031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191031 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 502016002170 Country of ref document: DE Representative=s name: DIEHL & PARTNER PATENT- UND RECHTSANWALTSKANZL, DE Ref country code: DE Ref legal event code: R081 Ref document number: 502016002170 Country of ref document: DE Owner name: PUREM GMBH, DE Free format text: FORMER OWNER: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, 66539 NEUNKIRCHEN, DE |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20211021 Year of fee payment: 6 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1049473 Country of ref document: AT Kind code of ref document: T Effective date: 20211031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211031 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221101 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20251020 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20251024 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20251029 Year of fee payment: 10 |